@article{MZ_1993__214_1_174583,
     author = {Catherine Searle},
     title = {Cohomogeneity and positive curvature in low dimensions.},
     journal = {Mathematische Zeitschrift},
     pages = {491--498},
     publisher = {mathdoc},
     volume = {214},
     number = {1},
     year = {1993},
     zbl = {0804.53057},
     url = {http://geodesic.mathdoc.fr/item/MZ_1993__214_1_174583/}
}